*1: Chyenhal Moor,
Newlyn, 1864, WC (PNZ) (Paton 1969a:
749).
*2: Near Helman Tor
Moor, 1905, RWS (TRU) (Paton 1969a:
749).
Grows as open lawns or mixed with grasses or other
low plants. Notes on habitats in Cornwall are as follows. Most
often found in shallow water and on wet or seasonally flooded,
acidic, humic mud and plant debris shaded or part-shaded under
old Grey Willow carrs, often forming extensive pure stands.
Also in open or lightly shaded in shallow water among Juncus spp. or Phalaris arundinacea
in wet rush-pastures, marshes, in and beside ± acidic pools
(including those in mine-spoil and china clay spoil), at edge
of a small stream and at a reservoir edge. Associates recorded
include Brachythecium
rivulare, Calliergonella
cuspidata, Chiloscyphus pallescens; Agrostis stolonifera,
Juncus
acutiflorus, Juncus
articulatus, Juncus
effusus, Juncus
inflexus, Phalaris
arundinacea.
Two records c.fr.: capsules immature 1,
4.
